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Lapper vs 155 genoa

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fatjohnz View Drop Down
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    Posted: 21 July 2013 at 8:39am
The jury is still out ; -)
Its definitely a special purpose sail with specific attack angle. I mean if you try to sail too close to the wind, you lose the luff and if you sail too deep, the main will start to blanket.
When trimmed well, the apparent wind on the windex is a little forward of perpendicular. So its a reacher as advertised.
It covers the point of sail where you'd either have to ease a genoa to the point where its barely drawing or you're trying to hold a spinnaker with the pole all the way on the forestay. The code0 would eat that point of sail up.
We are sailing the 190nm alir.org regatta on the 25th so I hope the new sail sees some action. We are not carrying the 150% for this race.
Hope that helps,
john
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Post Options Post Options   Thanks (0) Thanks(0)   Quote frfletch Quote  Post ReplyReply Direct Link To This Post Posted: 21 July 2013 at 1:21am
You tried the new sail today. Right? Lets hear the verdict!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fatjohnz Quote  Post ReplyReply Direct Link To This Post Posted: 20 July 2013 at 8:56am

I look back thru this thread and find many good comments which agree with what I've observed. I'll also say that I race phrf so I have laminate sails.
The first lapper I had made was not very powerful and I could not convince myself to drop the 150%. Last year though, I got a used lapper from a fellow Laser28 owner who is also a Doyle rep. This lapper is very powerful and the balance between the main and jib is very nice. Previous comments in the forum about pointing and handling apply.
I got a code0 designed to tack at the bow for the cases where I end up on a reach. We'll be putting it up for the first time today as a matter of fact.
sail fun!
js
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Winner Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2013 at 11:03pm
I've read this discussion with interest and it seems no consensus was reached as to lapper vs genoa overall, although there does seem to be agreement that the lapper definitely points better and is generally preferred in winds over 12 kts  whilst the genoa will do better in light air sailing on a reach.

What seems seems debatable is which is better for racing a windward/leeward course in light winds.

The genoa/lapper debate aside for the moment, my question, going back to Frank's comment above, would be whether to consider going with a lapper/reaching spinnaker (such as the North Sails S1 symmetrical) combination instead of a lapper/genoa for light winds.  The spinnaker won't point as high as the genoa (it's advertised at 60-120 AWA) but will it be worth it on those light wind days?  Bill Brock discussed this sail in another post within these forums and seems to like his.

Or do people see the S1 spinnaker and the genoa as not being mutually exclusive and it would be nice to have both (although budget does play a role here)!

Another option would be a Code 0 asymmetrical but this would involve adding a bowsprit.

Comments?
Chris
Eclipse #240
Thunder Bay, ON
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Post Options Post Options   Thanks (0) Thanks(0)   Quote frfletch Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2010 at 3:49pm
Back to this subject, using the lower track, and the 155 I'm just not getting the pointing ability with the genoa in any airs. This week I will try in-hauling a few degrees, but this inevitably means leaving the foot looser so as not to stretch it around the shrouds, and I'm then guessing that the upper part of the sail will start closing. In the last of our winter series, and before putting the 155 on board, I sailed with the 108 in very light airs(4-7true), though we had smooth seas, and had both boat speed and pointing ability over my main competitors, which are a Farr 31 racer cruiser, a C&C 35, and an Olson 911-l. Using the 155 these guys cut me up badly going upwind, as where they did not when I used the lapper. I will continue working with it a bit, but having difficulty justifying the 30 seconds per hour that it costs under phrf. By reviewing photos of Laser 28 competitions, I see they use the 155 almost exclusively, but then they are sailing against each other in level racing. I'm just finding the difference in pointing angles to be unbelievable. On the other hand, we know that lower track is at about 11.5% off center even when mounted tight into the radius between the deck and the rise to the cabin, where as the lapper is much less. I have not plotted it, but 9% is fairly common in boats of that era and of that speed range. Any suggestions?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote frfletch Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2010 at 1:37pm
i just added a #1 to Voila which took my BC PHRF from 147 to 141, about 30 seconds per hour which is a very stiff penalty for carrying this thing. I now owe time to C&C 35's, etc. We have raced with it only once. Speed was good, but I went the wrong way on a tack and never recovered the loss, so not a good test.

Having considered the in hauling idea, I have already removed the inboard tracks when I re finished the boat, however I plotted the outside tracks to find them situated 11.5 degrees off center. Most modern boats sheet to about 9 degrees and some even less. However, our little Laser is challenged with wide spreaders and shrouds that come quite far outboard, so I can see that inboard of 11.5 one is going to be fighting the foot against the shrouds. We find the speed of this sail sheeted to the lower deck to be very similar to the lapper. If I was still racing in Squamish I would definitely ditch the #1 because we average 20 kts and flat water, however sailing in West Vancouver, we often have light or dying winds with a left-over slop, and we are trying a #1 for this purpose. Otherwise, under PHRF, I'm thinking it is a waist of time and money. I see that many of the Lasers we hear of sailing in the North Americans, etc, sail largely against one another, so I'm guessing that rating is not an issue, but I seriously doubt that the #1 can give you sufficient advantage to over come 30 seconds per hour. The penalty is carried downwind as well, so going to windward I guess one must see at least a 45 second per hour advantage in order to break even on rating/speed/time. Perhaps only in sloppy conditions. I'm wondering if those of you who speak to reaching might consider an asymetrical for that leg and drop the #1. The #1 will not reach that well sheeted to the track. Let's keep this conversation going and hear some more from those who sail in PHRF fleets.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote khardy Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2010 at 4:39pm
By the way, the only reason I don't drop the genoa from the invintory and get the PHRF rating gain is that our races have too much reaching. If we had more windward / leeward races i'd drop the genoa in a heartbeat.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote khardy Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2010 at 4:33pm
Our boat has two sets of genoa tracks, one on the deck and one on top of the cabin roof. The north sail tuning guide tells you to use the inside track (on the cabin top) when the wind is light and then switch to the outboard (on deck) track when the wind builds. But i never liked the shape of the genoa when using the inboard track. It seems to me the best position is just inboard of the window - where you can't mount a track. That's why i use inhaulers instead of just sheeting through the inboard track. Also, if you get stuck with the genoa up in too much wind you can blow the in-hauler, thereby changing the sheeting lead to the outboard track. This will open the slot and help keep the boat on her feet.

You shouln't have to twist the genoa in 10kts - maybe around 13-kts. You need weight - we often sail with 7. As you get overpowered, sheet the main hard, very hard, which will flatten your headsail and depower the rig. Then use the traveler in the puffs. If wailing the main still leaves you overpowered then go to backstay.   
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jez rees View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jez rees Quote  Post ReplyReply Direct Link To This Post Posted: 12 May 2010 at 10:35am
Interesting. Our no. 3 jib is 100% whereas the no. 1 genoa is 142%. I'll have to look at this inhauling issue, are you on a lower track or the after cabin roof track?

A thought that I've been having is that we set up the genoa pre-start to make sure that telltales break evenly but that perhaps when we're past 10 knots that we should twist the top out to spill the high up air. We can then always put it back in if it goes light.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote khardy Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2010 at 2:46pm
jes-rees,

Not sure if your #3 is what I call the lapper. My "lapper" is a 108%. In my opinion there's no question the lapper is the right sail at or above 12-kts of wind. Speed is equal to the 155, you can point slightly higher because of the diference in sheeting angle, and tacks are faster. Also, in 12-kts and above, less expierenced crews may have a tendancy to heel excessivly with the 155 which is dog slow in the L28.

That said, it took me a while to learn to sail the 155 to it's best potential. I use in-haulers to bring the sheating angle even with the corner of the cabin roof. In all but the lightest conditions I sheet in untill the sail is just touchching the spreader. In puffy / shifty conditions you'll need to play the genoa to keep it at this spot as the wind-speed changes.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fatjohnz Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2010 at 11:30am
On the river where I sail, I need the genoa for light air reaching legs. Further down the river, where its wider, they sail more traditional windward/leeward courses. In the downriver club, there is a Laser owned by a Doyle rep who has removed the genoa from his inventory because he made similar observations as you against his competitors; and he gets a phrf benefit from removing the genoa. john
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jez rees Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2010 at 9:33am
Can I re-open this old discussion?

We're getting worried that we don't get decent results whenever we fly the genoa. We're slower through tacks and are not getting the same height as the non-overlapping headsail. I'm going to do some testing on angles and boatspeed with the two sails (has anyone already done this?).

Last thursday's race 13-15 knots No.3 headsail, we won plus gaining on faster boats upwind. This thursday's race 10-13 knots No. 1 genoa, last - only gaining on faster boats downwind.

There could be a lot more elements involved of course...Anyone coming to the same conclusion? We know the boat wasn't designed for the genoa. If we re-rate on just the no. 3 under IRC this could do us some serious favours.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Chris Ross Quote  Post ReplyReply Direct Link To This Post Posted: 03 January 2007 at 5:07pm
drunken sailor,

could you post a pic of the new lapper while it is up. I'm very interested in seeing what the shape of the sail is. when it is flying.
Chris Ross
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2006 at 7:34am
We now use the lapper as our biggest head sail and change down to a number 3 in around 22 to 25.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote khardy Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2006 at 1:49pm

My understanding is that the boat was originally designed for the lapper only.  But soon after the boat was introduced they started modifying the boat to take 155 jibs to make them more competitive under PHRF racing.  (PHRF is the most widely used handicap here in the US.)

 

In my experience you can switch to the lapper around 12kts true wind speed; maybe less with a lighter crew.  This is based on the stock boat with no keel modifications.  I’ve yet to experience the high end of the lapper, I’m guessing close to 30?

 

 Unfortunately we rarely use the lapper because the winds are relatively light here.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote redfox Quote  Post ReplyReply Direct Link To This Post Posted: 24 November 2006 at 4:13pm
Hello around the Altlantic Ocean!

As probably the only Laser 28 sailor in Germany I follow your translatlantic discussion about the lapper with great interest. My boat a RedFox 290, (the European Laser 28 with 300 kg more weight in the keel - unfortunately at the upper end of the keel) is equipped with a genoa I (155%) and a genoa III (100%). I guess a lapper could be an interesting sail for median wind conditions. My question now is what the the typical range for a lapper is or in other words is an alround sail or a relatively specialized one?
Also of interest would be the range of prices around the Atlantic Ocean. In Germany the price for a lapper is around 1.500 Euro.

Best regards
Klaus
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2006 at 11:44am
What i know is that it is the same size but a lot more powerfull. it was made by Andy Mitchell at north sails in cape town.

We went training on Sunday with it and we sailed with just it up on the way back to the club to have a closer look at it.

The wind was blowing around 14 - 18 knts. with just it up we were seening speed avg around 5.5knts. max at 6. this is on the boat that has teh bulb on it. We all so had very good hieght. There were only 3 on the boat at the time but full crew of 6 we should be really hot.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Chris Ross Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2006 at 2:34pm

Who made the sail? Does it have a larger roach? Is the draft different from your other lapper?
Chris Ross
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 09 November 2006 at 3:58am
Hey.

Sorry haven't been on for a long time. When ended up getting a keval Kevlar/laminit lapper made.

We raced with it but still had the ratting for the 155. We creamed everybody. the wind was only blowing 8 to 14 knots most of the regatta and we were amazed we were going the same with the lapper as we would wiht the 155.

One thing thow is we have to change to a small sail earlier compared to the old lapper. This one is some power full we have to change down to the old one or a no 3 by the time it starts to blow 18 to 20.

Our main and lapper package is very potent. and we are changing our irc rating to it. Hopefully we can win the irc nationals again like we did last year.

Regards
DS
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2006 at 12:43pm
drunkenSailor, I sent you a PM about the price I paid this winter.
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